이 기능에는 맞춤 어댑터를 사용합니다. BaseAdapter
에서 연장하고 Spinner
및 Droppdown
컨트롤에 대한 조회수를 부풀려주세요.
List<String> stagesValues = new ArrayList<>(stagesResults.values());
mStageSpn.setAdapter(new DropdownAdapter(mContext, stagesValues, mStageSpn));
public class DropdownAdapter extends BaseAdapter {
private final LayoutInflater mInflater;
private List<String> mData;
private Spinner mStageSpn;
public DropdownAdapter(Context context, List<String> data, Spinner stageSpn) {
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mData = data;
mStageSpn = stageSpn;
}
@Override
public int getCount() {
return mData.size();
}
@Override
public Object getItem(int arg0) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = mInflater.inflate(android.R.layout.simple_spinner_item, null);
((TextView) view.findViewById(android.R.id.text1)).setText(mData.get(mStageSpn.getSelectedItemPosition()));
return view;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View view = mInflater.inflate(R.layout.spinner_item, null);
if (mStageSpn.getSelectedItemPosition() == position)
view.setBackgroundColor(Color.RED);
((TextView) view.findViewById(R.id.text_id)).setText(mData.get(position));
return view;
}
}